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# Eric

Questions23
• ### Physics homework help?

An object on a frictionless surface is attached to a spring having a spring constant of 235N/m. 50.0J of work was done on the spring to stretch it to its maximum amplitude. As the mass passed through its equilibrium position, a motion detector determined that its speed was 14.6m/s.

What was the position of the object when its speed was 5.00m/s?

• ### Kinematics with gravity problem help!?

An object is dropped from a bridge. How far does it fall in the 8th second?

I got 83.4m and I'm not sure if it's right or not. Could you guys tell me what you got and how you got it?

How do I know which direction the parabola opens with just the data from a table, without graphing?

• ### Physics Lab Help!!?

I've been trying to do this for hours and just can't figure it out.

We graphed our experimental data on sheets, then used the equation to compare to a theoretical equation. I'm supposed to make an equation relating the constants but I honestly just have no idea do it. The teacher did one of them for me but I just simply can't figure it out. Please help me out guys.

Teachers Example: https://gyazo.com/93def19fe9948b55f1709e6d5cf77266

My graphs and data:

https://gyazo.com/636241ddc04c1a40e17f06af71b11aa8

The lab questions (particularly C and D): https://gyazo.com/d82678c3e6e71699229f73f33952f630

Keep in mind Part 1 was done for us, I just need help figuring out 2 and 3. I got some equations down but I'm just not sure if they're right. I really don't know what I'm doing and spent the past few hours trying to do it. Please help!!

Mathematics11 months ago
• ### Physics help!?

A red car goes through a stop light at a speed of 60.0 km/h. A police car (at

rest) starts chasing the car with an acceleration of 4.5 m/s

2

. How far away

from the intersection does the police car catch the red car if:

a. the police car leaves the intersection at the same time

b. the police car leaves the intersection 3.0 s later

Can someone explain this to me with steps? Thanks!

• ### Physics homework help!?

I know the equation that's supposed to be used, Vf=Vi+at but I'm not sure what to do with the change in time, if I just write time as 13s we're neglecting the first 3 seconds of constant velocity. If I add it beside the initial velocity I'm changing the equation, is that okay? What should I do?

Here's the question:

A particle is moving with an initial velocity of + 112 m/s at t = 0 s. The particle has no acceleration

until t = 3.0 s, after which it has an acceleration of - 4.0 m/s2

. What is the velocity at t = 16.0 s?

• ### Do I need physics to become an Eye Surgeon?

I'm in Grade 11 right now and already started school. I know I need Bio and Chemistry but I'm unsure if I need physics or not. I have the option to switch out of it now so I need to know if I need it or not.

My sister has been telling me that I do and they start off of Physics 11 so I would need to take that course, but I just am not sure.

What exactly do I need and what's the career path for an Eye Surgeon? From what I understand I have to go to med school which would be more heavy on chemistry and biology I would assume.

I just don't want to switch into physics if I don't need to because it will mess up my other courses that I have lots of friends in.

Responses are really appreciated, thanks!

5 AnswersHigher Education (University +)11 months ago
• ### Will Disney+ have shows and original movies from Disney Channel?

If it did, this would be one of the main reasons I would buy it.

• ### Numbness over 16 hours after smoking weed. Is there anything I can do to get rid of it, how long does it last?

I smoked for the second time yesterday night and didn't feel anything until I used a vape with nicotine where it all hit me. Ever since then I've had a fuzzy/numb feeling in my fingers and other parts of my body and it's been really disorienting.

I thought the effects would have been gone by now, my first time the fuzzyness/numbness went away about 4 or so hours after I had first smoked. Why is it taking so much longer?

I was wondering if there was anything I could eat or do to get rid of this feeling, I absolutely hate it and I don't want it to last a long time.

Thanks

3 AnswersOther - General Health Care1 year ago
• ### Is there any way I can get free games for the Nintendo Switch?

Nintendo Switch games are extremely pricey and I don't have too much money to buy the games I want. I remember a while back there were cartridges like "260 games in 1" that would give you a bunch of games essentially for free. Is there any way to do this for the Switch, or do I have to hack it.

If hacking the switch is the only option, what are the drawbacks. I've hacked a 3ds and gotten freeshop with no drawbacks or consequences that I've seen, is it a similar process?

Thanks.

1 AnswerVideo & Online Games1 year ago
• ### Did I see a ghost, or was it in my head?

A couple of days ago I visited the Queen Mary in California. I don't believe in ghosts, and still dismiss the encounter I had but I still wonder about it.

I went to the engine room, and was walking when I suddenly felt disoriented, lightheaded, or almost out of it. I look to my left and see a little girl and suddenly snap out of it.

I didn't think much about it at the time, and just dismissed it as my brain playing tricks on me, but I was wondering if this sort of "lightheadedness" was common when seeing a ghost.

Thanks.

• ### Do I have a bad short-term memory?

I've noticed only recently that I've been quite forgetful. Here are some of the things I've noticed:

-When asking about something with a teacher, once they leave my desk I often forget bits of what they said and have to ask once more.

-I umpire baseball, and I commonly forget if I clicked the counter for each pitch which gets me really confused and unsure of the count.

-Sometimes people will tell me of things that are happening within minutes and I forget about it when it actually happens

-Once again in baseball, I'll see a play happen but then immediately be unsure because I somewhat forget what just happened.

I'm 15 years old, is this normal/okay? Could vaping w/ nicotine be the culprit? Thanks.

• ### When do you factor out a negative?

When factoring trinomials, when do you actually factor out a negative, is it if 2/3 of the numbers are negative, or...

Just kinda confused, exams are in a couple days so responses are really appreciated. Thanks!

• ### How do you round 4.495?

I ve been doing textbook work and more than once this issue has showed up, and it s been stumping me for years if I m being honest. If we re rounding it to the nearest whole number, the 5 at the end changes the 9 to a 0 which bumps up the 4 to a 5, thus allowing us to round the 4.495 to 5. Is this a correct method? Or do I just look at one digit. Thanks.

• ### "The Veldt" by Ray Bradbury?

Not sure what exactly this means, if anyone could help me out with this that'd be great, thanks!

6 AnswersBooks & Authors2 years ago
• ### Physics Exam Help?

What happened at 40s? (I'm aware this picture is a velocity-time graph but if it was a position-time graph, what happened at 40s?). I said "the object moved forward in a constant motion to the position 0m from the position 40m [S] and got half points, so I'm wondering if I missed something (I have an exam tomorrow so I can't ask).

https://imgur.com/a/7xQH3kS

Thanks!